2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 156Get this manual
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POWERHEAD CYLINDERCRANKCASEPISTON ASSEMBLY Pistons and Rings Measue ist
0.0461 to 0.0469
to gooveStdd1st 2nd igs, 0.0008 to 0.0024 (0.02 to 0.06 Sevice limit: 1st 2nd igs, 0.